Math, asked by nuhasharfraz, 1 year ago

If tanA =1 and tanB =root3 , evaluate cosAcosB — sinAsinB

Answers

Answered by palakmittal2208

6

tanA=1
A=45°
tanB=√3
B=60°

cosAcosB-sinAsinB
cos45°cos60°-sin45°sin60°
√2/2×1/2- √2/2×√3/2
√2/4-√6/4

sahil1518: thanx

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